<nav class="navbar navbar-default navbar-fixed-top" role="navigation">
  <div class="container">
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <%= link_to 'Inventory Manager', root_path, class: 'navbar-brand' %>
    </div>

    <div class="collapse navbar-collapse navbar-ex1-collapse">
      <ul class="nav navbar-nav navbar-left">
      <%= render 'layouts/navigation_menu_left' %>
      </ul>

      <ul class="nav navbar-nav navbar-right">
      <%= render 'layouts/navigation_menu_right' %>
      </ul>
    </div>
  </div>
</nav>